There is most definitely a house in between Faulk and Lucille. In that block of N Roxbury on that side of the street the addresses are evens and increase by 2's. Lucille was the corner house at 1000 N Roxbury, then the second house is the one with the unknown owner (since 2002) and blurred on google street view at 1002 N Roxbury (and appears to be the nicest property of the three), and Faulk's is the third house at 1004 N Roxbury.
Here is the google street view of the blurred out 1002 N Roxbury. Notice that it has a massive hedge row on both sides of the property, one in between it and Lucille's property, and then one in between it and Faulk's property (they really seem to like their privacy with the huge hedge rows and blurred out street views etc). From the spot at the link you can pan around for a 360 degree view with your mouse or finger, and if you pan a bit to the left you can see Faulk's house, and if you pan a bit to the right you can see Lucille's house, but you can't see the house in between them that is right in front of you because it is blurred out but it is indeed there behind that blur but it is obviously there because they blurred it (you can however see it in the satellite view at the last link below so you don't have to trust that it really is there behind the blur).
Building
www.google.com
Here is the overhead satellite view so you can see that there is indeed a home there in between Lucille and Faulk (notice the two big hedge rows on either side of it separating it from Lucille and Faulk), and it also shows you the house numbers for the houses as well, 1000 (Lucille), 1002 (unknown), 1004 (Faulk).
Building
www.google.com
It is probably public record but I don't feel like going through the efforts to find out who the owner is, but if you happen to figure out who owns the house in between Lucille and Faulk please share, I'm curious.